Aesthetica Dentals | Best Dental Clinic on Sohna Road Gurgaon

You got a root canal done. The pain stopped. You thought the problem was over. But months later, that same tooth starts acting up again. It hurts, maybe it swells, or you notice a small bump near the gum. Yes, a tooth that has already undergone root canal treatment can get reinfected. And it’s not as rare as people think. Let’s talk about why this happens—and what it means for you. First, what’s a root canal supposed to do?   A root canal clears out the infection from inside your tooth. The dentist removes the nerve and pulp, cleans the canal, and seals it. It’s like shutting the door on bacteria. But that door doesn’t always stay closed. So, what goes wrong? Why does infection return? 1. A canal was missed   Not all teeth are simple. Molars can have 3 or 4 canals—sometimes even more. Some are tiny and curved. If the dentist misses one, that part stays untreated. Example? Imagine cleaning a house but forgetting to check one locked room. If there’s mold in there, the whole hous...